Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/6/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/06/2025 22:30:03 0.01,-137.01 0.23,-135.90 125.72 80
2 11/08/2025 10:51:55 -0.01,-137.00 0.92,-141.19 477.70 80
3 11/09/2025 10:30:32 -0.01,-136.99 -0.08,-136.66 36.74 80
4 11/11/2025 22:33:51 0.01,-136.98 -0.07,-137.47 55.47 80
5 11/12/2025 22:15:09 0.02,-136.97 0.93,-132.94 459.13 80
6 11/14/2025 10:39:39 -0.02,-136.95 0.27,-138.22 144.58 80
7 11/15/2025 10:18:16 -0.02,-136.94 -0.74,-133.69 369.75 80
8 11/16/2025 22:42:57 0.01,-136.93 -0.45,-139.01 237.14 80
9 11/17/2025 22:21:34 0.01,-136.92 0.56,-134.49 277.07 80
10 11/19/2025 10:46:05 0.00,-136.89 0.64,-139.76 327.25 80
11 11/20/2025 10:24:42 0.00,-136.87 -0.37,-135.24 186.25 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/6/2025
SNOs_Map_GOES-18_NOAA-21_20251107.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/06/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21